It’s been a big week in the search for a vaccine. A major developer of a potential coronavirus vaccine says its first results in humans are showing positive early results.Meanwhile, Americans argue whether it is safe to reopen parts of the country, and what services are on the table. A particularly thorny business to reopen are gyms given their confined spaces and high-chances of spreading the virus. But many gyms promise to reopen safely with diligent disinfecting and wipe downs. But is that promise worth trusting?How long does the virus stay in the air? Even with equipment 6 feet away, is that far enough? Are gyms safe even with social distancing?Jeff Rossen is joined by Doctor Rochelle Walensky, Chief of the Division of Infectious Diseases at Massachusetts General Hospital, a professor of medicine at Harvard medical school, to answer those and more questions.We know you have a lot of questions about the coronavirus. We'll seek to answer them, by consulting our database of experts to get you accurate information on a range of topics. Check back tomorrow for another round. Submit a question of your own here.

It’s been a big week in the search for a vaccine. A major developer of a potential coronavirus vaccine says its first results in humans are showing positive early results.

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Meanwhile, Americans argue whether it is safe to reopen parts of the country, and what services are on the table. A particularly thorny business to reopen are gyms given their confined spaces and high-chances of spreading the virus. But many gyms promise to reopen safely with diligent disinfecting and wipe downs. But is that promise worth trusting?

How long does the virus stay in the air? Even with equipment 6 feet away, is that far enough? Are gyms safe even with social distancing?

Jeff Rossen is joined by Doctor Rochelle Walensky, Chief of the Division of Infectious Diseases at Massachusetts General Hospital, a professor of medicine at Harvard medical school, to answer those and more questions.

We know you have a lot of questions about the coronavirus. We'll seek to answer them, by consulting our database of experts to get you accurate information on a range of topics. Check back tomorrow for another round. Submit a question of your own here.